I'm having a little trouble with my quiz form. I'm using a page to show a single question that a user answers, from there I was hoping to save the question id and option id (My form is multiple choice, i set the options).
My HTML looks like this:
<input type="radio" name="question[3]" value="4">My Answer
When the form is posted I am doing this
if(isset(Yii::$app->session['question'])){
// Get posted array
$question = $_POST['question'];
Yii::$app->session['question'] = $question;
print_r(Yii::$app->session['question']);
}
So it's saved into my session as:
Array
(
[3] => 4
)
Which is fine, the problem I'm finding is trying to save the next question without overwriting the previous [question_id] => [option_id].
I understand why the following code just overwrites the existing the session['question'] variable. But I'm struggling to be able to save each question and answer array to my variable.
I have tried Yii::$app->session['question'][$i] = $question; and get Indirect modification of overloaded element of yii\web\Session has no effect
I've also tried array_push and array_merge to try and combine the previous array of question and chosen option, but have had no luck either. What am I doing wrong here please?
The correct way to do this is
$q = $_POST['question'];
Yii::$app->session['question'] = array_merge(Yii::$app->session['question'], [$question]);